STer's - I have done the reading online and other threads, but can't seem to find anyone that has described "electric" type sensations in the hamstring area above the knee that last for 1-2 seconds and then disappear. This started happening two days ago, while sleeping, and now while sitting and trainer riding. Does not really happen all day, but in the evening and while sleeping, it occurs about every 30 min.

The key is the "electric shock" type feelings that come on instantly without warning and then goes away. Anyone ever had this? Appears similar to the Piriformis Syndrome. I just completed a Half Iron distance race last weekend and really went hard at it. I am thinking a dose of stretching and rest might help.

Any thoughts from anyone that had something similar? Or advice?

Thanks in advance.